ChemComm Unit 2A

Test Description: ChemComm

Instructions: Answer all questions to get your test result.

1) a property that can be observed or measured without changing the identity of the sample of matter

2) a change in matter in which the identity of the material involved does not change

3) a property only observed or measured by changing the chemical identity of a sample of matter

4) an interaction of matter that results in the formation of one or more new substances

5) a chemical reaction with oxygen gas that produces thermal energy and light; burning

6) a property of a material that permits it to be stretched into a wire without breaking

7) the reflection of light from the surface of a material

8) a material possessing properties such as luster, ductility, conductivity, and malleability

9) a material possessing properties such as brittleness, lack of luster, and nonconductivity; nonmetals are often insulators

10) materials with properties intermediate between those of metals and nonmetals

11) a material that allows electricity to flow through it

12) a material possessing properties such as brittleness, lack of luster, and nonconductivity

13) the property of a material that permits it to be flattened without shattering

14) a property of a material that causes it to shatter under pressure

15) the number of protons in an atom

16) the sum of the number of protons and neutrons in the nucleus of an atom of a particular isotope

17) atoms of the same element with differing numbers of neutrons

18) a vertical column of elements in the periodic table

19) the group of elements consisting of lithium, sodium, potassium, rubidium, cesium, and francium

20) the group of elements consisting of fluorine, chlorine, bromine, iodine, and astatine


*select an answer for all questions

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